Aw, Slick, I'm so sorry to read this. Mitzi is suffering from renal disease too. She's not in any discomfort, but I can tell she's lost weight and her fur isn't quite as shiny. As long as she's eating and chasing her tail, I know she's okay - maybe not 100%, but she's not in any discomfort. We shall both enjoy our critters for as long as they may be comfortable and happy. We don't want them to suffer.